Use Android L navbar icons by default

Change-Id: I80425aec8db26e56954c0c081ee811eeff86e4fd

Conflicts:
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_back.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_back_land.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_home.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_home_land.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_menu.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_menu_big.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_recent.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_recent_land.png
	packages/SystemUI/res/drawable-hdpi/ic_sysbar_search.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_back.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_back_land.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_home.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_home_land.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_menu.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_menu_big.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_recent.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_recent_land.png
	packages/SystemUI/res/drawable-mdpi/ic_sysbar_search.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_back_land.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_home.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_home_land.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_menu.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_menu_big.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_recent.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_recent_land.png
	packages/SystemUI/res/drawable-xhdpi/ic_sysbar_search.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_back.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_back_ime.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_back_land.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_home.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_home_land.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_menu.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_menu_big.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_recent.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_recent_land.png
	packages/SystemUI/res/drawable-xxhdpi/ic_sysbar_search.png
Update Roboto fonts to Android L versions

Change-Id: I541694b159e32bb90c1889e894c4352e43f3ce40
Reset battery stats [1/2]

Change-Id: I90c1d1ab73c2187b68230a6db1db19dec2a5924b

Conflicts:
	core/res/res/values/strings_custom.xml
Identicons: Add identicons to ChaOS Lab [1/3]

Change-Id: Ie0ffc4a4c2a41d6a5f35aad761c4c17a725bbc2a

Conflicts:
	core/java/android/provider/Settings.java